Composite (BiO)2CO3/C photocatalyst and application thereof

A catalyst, composite light technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of large specific surface area, good hygroscopicity and permeability, good recovery and secondary utilization

Inactive Publication Date: 2016-06-15
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(BiO) 2 CO 3 The forbidden band width is about 3.38eV, and it can only accept ultraviolet light and cannot be excited by visible light. The (BiO) reported in the literature 2 CO 3 Generally unmodified
Currently, for (BiO) 2 CO 3 / C composite photocatalyst has not been reported yet

Method used

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  • Composite (BiO)2CO3/C photocatalyst and application thereof
  • Composite (BiO)2CO3/C photocatalyst and application thereof
  • Composite (BiO)2CO3/C photocatalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Cut the bamboo fiber into 2cm-long segments, and boil the bamboo fiber in boiling water at 100°C for 30 minutes. The purpose of boiling is to clean the surface of the bamboo fiber so that it will not stick during the subsequent high-temperature carbonization process. After boiling, the bamboo fibers are dried at a temperature of 80°C for 6 hours. Soak the treated bamboo fiber in 0.1mol / L bismuth nitrate solution, the mass ratio of bamboo fiber to bismuth nitrate is 1:15, and the soaking time is 4h. Calcined in a muffle furnace at a temperature of 500°C for 1 hour to obtain carbon fiber-loaded bismuth oxide (Bi 2 o 3 / C). 500mgBi 2 o 3 / C mixed with 100mL of 0.5mol / L sodium carbonate solution, stirred magnetically for 20min, and then put the mixture into a reaction kettle with a reaction temperature of 100°C and a reaction time of 24h. The obtained product was washed with distilled water and ethanol, and then dried at 80°C to obtain (BiO) 2 CO 3 / C composite photo...

Embodiment 2

[0030] Cut the bamboo fiber into 2cm-long segments, and boil the bamboo fiber in boiling water at 100°C for 30 minutes. The purpose of boiling is to clean the surface of the bamboo fiber so that it will not stick during the subsequent high-temperature carbonization process. After boiling, the bamboo fibers are dried at a temperature of 80°C for 6 hours. Soak the treated bamboo fiber in 0.1mol / L bismuth nitrate solution, the mass ratio of bamboo fiber to bismuth nitrate is 1:15, and the soaking time is 4h. Calcined in a muffle furnace at a temperature of 500°C for 1 hour to obtain carbon fiber-loaded bismuth oxide (Bi 2 o 3 / C). 500mgBi 2 o 3 / C mixed with 100mL of 0.5mol / L sodium carbonate solution, stirred magnetically for 20min, and then put the mixture into the reaction kettle, the reaction temperature was 150°C, and the reaction time was 24h. The obtained product is washed with distilled water and ethanol, and then dried to obtain (BiO) 2 CO 3 / C composite photocata...

Embodiment 3

[0032] Cut the bamboo fiber into 2cm-long segments, and boil the bamboo fiber in boiling water at 100°C for 30 minutes. The purpose of boiling is to clean the surface of the bamboo fiber so that it will not stick during the subsequent high-temperature carbonization process. After boiling, the bamboo fibers are dried at a temperature of 80°C for 6 hours. Soak the treated bamboo fiber in 0.1mol / L bismuth nitrate solution, the mass ratio of bamboo fiber to bismuth nitrate is 1:15, and the soaking time is 4h. Calcined in a muffle furnace at a temperature of 500°C for 1 hour to obtain carbon fiber-loaded bismuth oxide (Bi 2 o 3 / C). 500mgBi 2 o 3 / C mixed with 100mL of 0.5mol / L sodium carbonate solution, stirred magnetically for 20min, and then put the mixture into the reaction kettle, the reaction temperature was 190°C, and the reaction time was 24h. The obtained product is washed with distilled water and ethanol, and then dried to obtain (BiO) 2 CO 3 / C composite photocata...

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Abstract

The invention discloses a composite (BiO)2CO3/C photocatalyst and application thereof, and belongs to the field of photocatalysis materials. Carbon fibers are prepared by adopting bamboo fibers as a carbon source, and (BiO)2CO3 is uniformly loaded on the carbon fibers by utilizing a hydrothermal method. The material is excellent in photocatalysis performance, and especially under the illumination of a xenon lamp, organic pollutants in sewage can be effectively degraded.

Description

technical field [0001] The invention relates to a composite photocatalyst applied to the photocatalytic degradation of sewage, in particular to a (BiO) 2 CO 3 / C composite photocatalyst and its application in photocatalytic methyl violet removal. Background technique [0002] With people's continuous and in-depth research on photocatalytic oxidation technology, photocatalysis has been widely used in environmental quality as a new technology, especially with the continuous development of human society, the organic matter in industrial wastewater has intensified, and dye wastewater is An important source of these pollutants seriously threatens the water resources on which human beings depend. In recent years, advanced oxidation, typified by photocatalytic oxidation, has gradually become an important industrial wastewater treatment technology, and is favored by more and more business people and researchers. [0003] In the process of photocatalytic degradation, photocatalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/232C02F1/30C02F101/38
CPCB01J27/232C02F1/30C02F2101/38C02F2103/30
Inventor 李嘉戴颖宋鹏左敏杨萍刘世权
Owner UNIV OF JINAN
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